Look to the team first of all and for the problem what they gonna decide. Lokk to the bounty manager who carry out but not all the time it's work. They need to have good website and good revious on popular platforms.
Also be aware of scams from other participants, recently I just discovered someone made a ''complaint'' using my name and profile link to change my ethereum address, thankfully I checked it and realized that it was changed. Everyone should always check their address because someone could just impersonate you and try to change it. In this case it was because the campaign allowed people to submit complaints via google forms.
Its my first time to hear about a scam such as that. People can become very creative these days. Its amazing how they come up with different ways to scam people. Managers should also be aware about these and should be more strict with changing wallet addresses. Its usually SPO to require the participants to have a signed message whenever they want to change their wallet in order to avoid scams such as these.